diff --git a/minimal-mistakes-jekyll.gemspec b/minimal-mistakes-jekyll.gemspec
index ee44da50..d39ca8cb 100644
--- a/minimal-mistakes-jekyll.gemspec
+++ b/minimal-mistakes-jekyll.gemspec
@@ -15,7 +15,8 @@ Gem::Specification.new do |spec|
     f.match(%r{^(assets|_(includes|layouts|sass)/|(LICENSE|README|CHANGELOG)((\.(txt|md|markdown)|$)))}i)
   end
 
-  spec.add_development_dependency "jekyll", "~> 3.3"
+  spec.add_dependency "jekyll", "~> 3.3"
+
   spec.add_development_dependency "bundler", "~> 1.12"
   spec.add_development_dependency "rake", "~> 10.0"